Flash is an awesome tool and it gets even better to use once you start to play with its dynamic features. Basically this means passing a variable from point A to affect point B. To ease the process of making new things sometimes its good to generate those variables by a random seed or by having the data in a static environment.
Web logging is one thing that I first tackled 12 years ago using billboards an home server. Things have evolved so much since then. The complexity of API mash ups are amazing and use many different programming language. To ease the process of calculation for the client computer and the process of creation for the blogger it is imperative to use a Content Management System to export good content and beautiful simple environment on the fly.
WordPress is still today and since the last 5 years my CMS. All by itself its easy to use and to add new features. PHP is a awesome language and I will always love it for its simplicity. Using AMFPHP instead of a xml-rpc client is the ideal choice to transfer the smallest packets available directly from WordPress into Flash. The awi framework is really good to extend and offer a good introduction in the combination of SQL->AWI->AMFPHP->Flash. To anyone I suggest this combination for a good flash blog because you will end up with better handling of all your data.